How to add mass to Pro/Mechanica Model
How to add mass to Pro/Mechanica Model
(OP)
I am a Solidworks Simulation user that must migrate to Pro/Mechanica with the new job.
I am trying to add a 1 lb mass to a model. That is, I want to "smear" 1 lb over the face of the part. Solidworks considers this a distributed mass. I can not find the equivalent in Mechanica. I tried Mass Definition but it is looking for a Geometrical Reference. It will not let me pick any features on the part.
Any ideas?
I am trying to add a 1 lb mass to a model. That is, I want to "smear" 1 lb over the face of the part. Solidworks considers this a distributed mass. I can not find the equivalent in Mechanica. I tried Mass Definition but it is looking for a Geometrical Reference. It will not let me pick any features on the part.
Any ideas?





RE: How to add mass to Pro/Mechanica Model
RE: How to add mass to Pro/Mechanica Model
Altering density would only work if you applied a shell element directly on the surface, but that would introduce shell-solid links - and that would make the model a bit messy.
When I left PTC 3 years ago there was talk of adding a distributed mass feature - so it might be there some where.
Hope this helps.
RE: How to add mass to Pro/Mechanica Model
Like most FEA software, one needs to learn how to set up models and the PROCOACH lesson on Mechanica does not mention how to drive in FEM Mode.
I guess I need a better tutorial!
RE: How to add mass to Pro/Mechanica Model
So just to be clear, when the FEM mode box is checked you are not actually using Mechanica.
Give the weighted links a try.
RE: How to add mass to Pro/Mechanica Model
RE: How to add mass to Pro/Mechanica Model
As a work around, I made a new material with an increased density to match the weight of the pcb plus the 1 lb.
I am only looking for the natural freq at this point and the above approach worked but was much more time consuming than just adding a distributed load like I could do in Solidworks.
RE: How to add mass to Pro/Mechanica Model
RE: How to add mass to Pro/Mechanica Model
RE: How to add mass to Pro/Mechanica Model